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virtio: remove bitfield in Index template

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Eliminates note of GCC about bitfield as parameter semantic change.

Ref #4344
This commit is contained in:
Stefan Kalkowski 2021-12-13 15:41:58 +01:00 committed by Norman Feske
parent 609af0037f
commit 6dbdb966fc
1 changed files with 6 additions and 2 deletions
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8
repos/os/src/server/vmm/virtio_device.h
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@ -48,13 +48,17 @@ class Vmm::Virtio_split_queue
{
private:
unsigned _idx : LOG2;
uint16_t _idx;
static_assert((sizeof(uint16_t)*8) >= LOG2);
public:
Index(unsigned idx = 0) : _idx(idx % (1 << LOG2)) {}
void inc() { _idx++; }
void inc() {
_idx = ((_idx + 1) % (1 << LOG2)); }
unsigned idx() const { return _idx; }
bool operator != (Index const & o) const {